Drying apparatus.



T. HOWARTH & J. V. MUSGRAVE. DRYING APPARATUS. APPLICATION FILED SEPT.14, 1908. 930,75 Patented Aug.10,1909.

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T HOWARTH 6: J. V. MUSGRAVE. DRYING APPARATUS. APPLICATION FILED $31114, 1908.

Patented Aug. 10,1909.

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UNITED STATES PATENT @FFIQE.

DRYING ABEARA'IUS.

Specification of Letters Patent.

Patented Aug. 10, 1909.

Application filed September 14, 1908. Serial No. 453,002.

To all whom it may concern:

Be it known that we, TnoMAs IIowAR'rH and JOHN VARLEY MUsenAvE, subjectsof the King of Great Britain, residing at Bradford, in the county ofYork, in the Kingdom of England, have invented certain new and usefulImprovements in Drying Apparatus, for which application has been made inGreat Britain, No. 22,325, dated OctoberlO, 1907.

This invention relates to improvements in drying apparatus connectedwith backwashmg machines for washing wool and the like in which the woolin sliver form or other material to be dried is led around rotating"perforated cylinders through whichheated small radial holes or orificesconnecting the interior of the annulus with the exterior, whence the airpasses through the perforated cylinders which carry the wool and arerotated on the steam jackets. It will thus be obvious that a verythorough heating of the air is effected as it passes first into a spacesurrounded by the steam jacket and then through the same before it comesinto contact with the wool.

In the accompanying drawings wherein we have illustrated one embodimentof our improvements :Figure l is an elevation of the.

machine in partial section showing enough for the comprehension of theinvention."

Fig. 2 a sectional side View of one of the revolving shells and itsappurtenances. Fig. 3 represents a Roots blower to be connected up withFigs. 1 and 2.

In these the steam chest at is shown as rigidly mounted upon the plate6. The steam chest incloses' a space and is provided with a central boss0 on which is mounted so as to revolve thereonthe shell cl provided withperforations e on its periphery. Inter-- mediate to the shell 01and'steam chest 0, are

two rings f one of which is provided with suitable packing g. Secured tothe shell and revolving on the steam chest is a spur wheel or gear wheelh. The packing g prevents oil used for lubricating the wheel h fromentering the annular space between the shell (1 and steam chest a. Inthe structure herein illus trated the boss 0 is preferably secured tothe steam chest by means of a plate 0 integral with it and screws 9'.Between and secured to thg two rings f is a stationary baflle plate karranged so as to prevent air from passing lout through the apertures orperforations of ithe shell at such parts as are not normally covered bythe wool. Pieces of metal a are interposed between the walls of thesteam chest 0 and provided with holes a through which air can pass fromthe space inclosed by the steam chest to the space between the steamchest and the shell. The pieces a do not extend the whole length of thesteam chest so that steam can pass from one part to the other. Z Z arethe steam supply connections and m m are the air supply connectionswhich are preferably connected up to a Roots blower or other device forsupplying air under pressure by means of a pipe 72 which feeds into thegutter 0.

The device is driven from a suitable spur wheel such ,as is indicated bythe chain dotted line 10 which gears with the gear wheels h of the uppertwo shells which in their turn gear with the gear wheels h of the lowerset of shells. V

The action of the machine constructed as above set forth, when used fordrying wool is as follows :-The wool represented by the dotted line Q asit passes in sliver form from the baclcwashing machine passes over theguide pulley or wheel 1" then down over and around the first shell 01then up and around the next and so on till it emerges from the apparatusover the guide pulley or wheel 8. While the wool is passing through thedrier steam is admitted to all the steam chests a and air forced throughall the bosses c after which it is heated and passes by the holes a intothe spaces between the steam chests and shells (Z and from thencethrough the wool about the shells whereby the wool is dried.

, We declare that what we claim is 1. In drying apparatus, a rotatablecylin drical carrier apertured in its perimetral'surface and having aninterior chamber cornmunicating with its perime tral apertures,

means for supplying air to the interior chamber of said carrler, and asteam jacket housed Within said carrier and adapted to heat the airsupplied thereto.

2. In drying apparatus an annular steam jacket an end plate on saidsteam. acket, a boss on said end plate, means for conducting air throughsaid steam jacket in a radial direction, a perforated cylinder mountedon and rotatable on said boss, means for forcing air through said steamjacket.

8. In drying apparatus an a ertured annular steam jacket, a central osson said steam jacket stationary rings about the periphery of the saidsteam jacket a rotatable perforated cylinder mounted on said boss andbearing on said rings, a spur Wheel secured to said cylinder, means forconducting and forcing air into the interior of said steam jacket andthrough the perforations of said cylinder.

4. In drying apparatus an apertured steam jacket means for forcing airinto the space inclosed by said steam jacket and out therefrom radiallythrough said steam jacket "means for conducting WOOl about said steamjacket.

5. In drying apparatus a steam jacket annular in form and arranged toinclose aspace means for admitting air axially into the space inclosedby said steam jacket and plates in the steam space of said steam jacketcontiguous to the inner and outer Walls of the same and provided Withradial orifices or passages means for conducting Wool about said steamjacket.

6. In drying apparatus an annular steam jacket means for conducting airinto said steam jacket and out therefrom in a radial direction aperforated rotatable cylinder mounted on and about said steam jacket,bearing rings intermediate said steam jacket and said cylinder, astationary baffle plate against the interior Wall of said cylinder forthe portion of the cylinder normally free from Wool, a spur Wheel onsaid cylinder and means for circulating steam in said steam jacket.

7. In drying appar tus a pipe means for forcing air along said pipe agutter connected to said pipe, a plurality of pipes leading from saidgutter, a plurality of annular steam jackets, means for supporting saidsteam jackets bosses on said steam jackets each connected to one of saidplurality of pipes, means for permitting air to pass out of said steamjackets through the Walls of the same, a perforated rotatable cylinderon and about each of said steam jackets, means for conducting WOOlaround each of the said cylinders.

8. In drying apparatus a pipe, means for forcing air along said pipe agutter connected 'to said pipe, a plurality of pipes leading from saidgutter, a plurality of annular steam jackets, means for supporting saidsteam jackets bosses on said steam jackets each connected to one of saidplurality of pipes, means for permitting air to pass out of said steamjackets through the walls of the same, means for leading wool about saidsteam jackets.

9. In drying apparatus, a perforated rotatable cylinder, an aperturedannular steam jacket within. said cylinder, and means for forcing airthrough the apertures of the steam jacket and through the perforationsof said cylinder.

10. In drying apparatus, a steam jacket having an axial opening andradial passages in its walls comnmnicating with said. opening, acylinder rotatable on said jacket and provided with perforations, andmeans for forcing air through the axial opening and passages of thesteam jacket and through the. perforations of said cylinder.

11. In drying apparatus, a steam jacket annular in form and arranged toinclose a space and. provided. with pm'iplnnfal orifices adapted forcommunication with said spare, means for admitting air into the space inclosed by the steam jacket, and means for conducting wool about saidjacket.

12. In drying apparatus, a steam jacket annular in form and arranged toinclose a space, means to support said jacket 'u'ith its axishorizontal, a perforated cylinder rotatale around said jacket, means forforcing air to the space inclosed by the steam jacket, radial passagesthrough said steam jacket for permitting the escape of air from said andmeans for conducting wool about said cylinder.

13. In drying apparatus, a steam jacket having radial itPGllJUI'CS,meam; for forcing air through said apertures, a mrforated cylinder aboutsaid steam jacket, bearing rings intermediate between the steam jacketand cylinder, and means for rotating said. cylinder.

14. In drying apparatus, av supporting plate, a plurality of steam jaekets annular in form mounted upon the plate and extended horizontallytherefrom, a rotatable perforated cylinder around each steam jacket,each of said jackets having an inclosed air space and radial passagesleading therefrom, and means for supplyin air to the spaces inclosed.within the respective steam jackets.

In witness whereof are have hereunto signed our names this 3rd. day ofSeptember 1908, in the presence of tuo subscribing Witnesses.

THOMAS I-IOWAREH. JOHN VARLEY MUSG \AVE.

Vfitnesses Hnnnnr HUMrimnY, Guns. T. IIJBBERT.

